@if (count($errors)>0)

    <div class="alert alert-danger">
        <h4>有错误发生:</h4>
        <ul>
            @foreach($errors->all() as $error)
            <li><i class="glyphicon glyphicon-remove""></i>{{$error}}</li>
            @endforeach
        </ul>

    </div>
@endif